tuell



tending higher up, even to the top of the oven, and intervening between it and the firepot, the oven-plate forming its back, and its front plate f X extending upward almost to the top, and the exit for the air being over its upper edge, and so that it can pass downward between the plate f and the fire-pot casing t" to the space below the grate, and thence to the fire.

At q is shown another chamber, auxiliary to the chambers before described, or it may be used separately and distinctly therefrom. This chamber is situated below the bottom of the stove, and is simply a box, or the equivalent thereof, fastened, in any suitable manner, to the said bottom plate 0 of the stove, which also forms the top of the said auxiliary chamber g. This chamber has communication with the-space below the grate, or with the chamber 12, or with the tubes m, and chambers a and 0, as may be desired, and also has ingress openings at 1', which said openings may be situated in either the back, sides, front, or bottom of the box forming said auxiliary chamber. At 8 are tubes, chambers, or the equivalent thereof, forming passages for air along and under the bottom plate of-the stove c, and deriving heat from the bottom fines of the stove. These tubes or chambers 8 may communicate directly with the tubes m, and chambers n and 0, or with the chamber 1), or with the auxiliary chamber q; with either arrangement it forms a complete introductory,

.a ir passing therein becoming warmed by the heat imparted by the bottom fines of the stove.- They have apertures for inlet at S and for communication with the chamber 19 at S Thus several chambers are provided having proper communication with each other, so that all can be used together, or each used by itself separately, or by different combinations, arranged so as to be very efiective in heating-the draft-air to the fire, the object of said chambers or tubes, used either with or separately or in combination with other parts of the stove, being, after fire is started, to heat draft-air, to keep up steady and rapid combustion of fuel, heated air being found useful for that purpose, and the means used being considered better and .more effectual than by the ordinary means through front grate or front plate or side plates of the stove, and furnishing chambers contiguous to the fire, where draft-air is powerfully heated, and utility of stove for heating and cooking-purposes much irrr:as -'l. At a is shown the curved plates, which are used to contract the passage, so as to keep and concentrate the products of combustion within the fire-pot or chamber of combustion, so theymay be all destroyed before the escape beyond the direct influence of the flame and heat within the same. These plates may be straight or curved, as deemed best; back of'the same, through the jambs of the stove, at v or any other suitacommunicating through the bottom of the stove, thence into chambers a and o, as arranged and set forth.

2. The combination of communicating chambers n and 0, tubes or, and fire-potu', constructed and arranged as set forth.

3. The opened and communicating chambers p and p, with partitioned plate f, extending nearly to the top of said chambers, and chamber j, all in combination, as arranged and set forth.

4.. The auxiliary chamber q, or its equiva lent, with ingress and egress openings, in combination with the bottom plate of the stove, tubes m, or chamber p, constructed, arranged, and operating in the manner substantially as described and set forth.

5. The fine-strips u, in combination with the fire-pot i, top oven-plate g, jamb c, with openings 12, substantially as described and set. forth.

0. The tubes m, chambers a and 0 with apertures, dampered or not, the hot-air chamberj, or their equivalents, and fire-chamber 'i, all in combination and operation, as described and set forth.

7. The chamber q, tubes, or their equivalent, 8, each with ingress and egress openings,

dampered or not, incombination-with hotdraft chambers 11 and n, all communicating and operating substantially as described and set forth.

8. The communicating chamber 12 and 7", with opened partitioned plate f, and 0 amher 0, as constructed and arranged,. al in combination and cperaion, for the purpose set forth.

ALVAH TRAVER.

\Vitnesses:

1011mm 1L REILLE, A. S. HEILLE.

M. TUELL. STRAW CUTTER.

No. 108,411. Patented 001. 18, 1870. 

